Say cheese! 5 Seconds Of Summer's Ashton Irwin pulls a bizarre expression as he meets a bra-clad Jennifer Lopez at AMAs after party

By Monique Friedlander For Daily Mail Australia

Published: 21:17 EST, 23 November 2015 | Updated: 22:38 EST, 23 November 2015

5 Seconds Of Summer graced the American Music Awards stage with an electrifying performance on Sunday.

And so it perhaps comes as no surprise that drummer Ashton Irwin, 21, wore a similarly electrified expression during the award ceremony's after party, held at The Nice Guy club in Los Angeles. 

As he rubbed shoulders with Jennifer Lopez, the Australian rocker pulled a pained expression by closing one eye and gritting his teeth in the snap, which he posted to Instagram. 

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Showing us his pearly whites: 5 Seconds Of Summer drummer Ashton Irwin, 21, wore a strangely electrified expression as he posed with Jennifer Lopez a the American Music Awards after party in Los Angeles

Showing us his pearly whites: 5 Seconds Of Summer drummer Ashton Irwin, 21, wore a strangely electrified expression as he posed with Jennifer Lopez a the American Music Awards after party in Los Angeles

'Jenny from the block', he wrote next to the snap.

While some fans were quick to profess their undying love for Ashton's quirky ways, others made a point of commenting on his strange expression.

'He looks like he's in pain', one fan quipped, while another wrote, 'invest in more face!'  

Won't lose him in a crowd! Michael made a splash with his newly dyed fire engine-red hair

Won't lose him in a crowd! Michael made a splash with his newly dyed fire engine-red hair

Meanwhile, Jennifer appeared relaxed as she posed with one arm slung over Ashton's shoulder and a glass of yellow liquid in her other hand. 

Her ultra-bronzed skin was on full display in her racy ensemble which consisted of a lace black bra and matching pencil skirt. 

She accessorised her look with a set of hoop earrings and a set of silver rings. 

Clean up on isle 5! Luke Hemmings emerged from his limosuine at the VIP event, but not before he accidently spilled a cup of liquid on its interior

Clean up on isle 5! Luke Hemmings emerged from his limosuine at the VIP event, but not before he accidently spilled a cup of liquid on its interior

Also in attendance at the Justin Bieber's bash were Ashton's fellow band-mates Luke Hemmings and Michael Clifford.

Eccentric Michael made a splash with his newly dyed fire engine-red hair, which he coordinated with his black and red embroidered jacket, while Luke sported a casual leather jacket and black jeans. 

The boys from 5SOS won't be able to make it home to Australia later this week for the ARIA Awards, but they will be making a live cross to the Sydney ceremony from a friend's house in Los Angeles. 

Going the distance: The boys from 5SOS won't be able to make it home to Australia later this week for the ARIA Awards, but they will be making a live cross to the Sydney ceremony from a friend's house in LA

Going the distance: The boys from 5SOS won't be able to make it home to Australia later this week for the ARIA Awards, but they will be making a live cross to the Sydney ceremony from a friend's house in LA

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